Leaf-turning device.



J. B. STURZL.

LEAF TURNING DEVICE.

APPLICATION FILED APR.3, 1916.,

, Patented Jan. 23,1917.

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@Mb w UNITED STATES PATENT OFFICE.

JOHN B. STURZL, or HILES, wrscoivsnv.

LEAF-TURNING DEVICE.

Specification of Letters Patent.

Patented Jan. 23, 1917.

Application filed April 3, 1916. Serial No. 88,447.

To all whom z'tmtafy concern Be it known that I, JoHN B. STURZL, a citizen of the United Hiles, inthe county of Forest and State :of

5 Wisconsin, have invented certain new and useful Improvements in Leaf-Turning Devices; and I do hereby declare that the following is a full, clear, and exact description thereof. 1

- The resent invention relates to new and useful improvements in music leaf turners,

- more particularly of that simpler type .ineluding a single turning frame. 1 The present invention resides in the gen eral improvement of devices of this character and a more specific object is to provide a leaf turningdevice which-is of an exceedingly. simple structure to provide for economy in manufacture and for an exceeding Eompactness and durability of the finished evice.

A further. object resides in the provision of a. leaf turning device which may be operated electrically.

vantages in view, the invention residesmore particularly in the novel combination, arrangement and formation of parts more par-v ticularly hereinafter described .and particularly pointed out in the appended claims. I In the drawings: Figure 1 'is a front elevational view of the improved leaf turning device. Fig. 2 is a horizontal sectional view through the lower line 2-2 of Fig. 1. v

Referring now more particularly to the accompanymgzdrawings, v5 designates the body plate of the device which may be either adapted to be set on the music rack 4c of a piano or like instrument, or which may.

bearmg. brackets 10 carried by the top and bottom ed e'. portions of the plates The plate is also provided -with a] transverse 56 groove 11 struck thereinto which serves to partially house the shaft, to'procure a eom- States, and resident -of Y of thelower en'd With the above and other objects and adone of the portion thereof on the.

pactness of structure and to assist in retain.

ing leaves on the gether with the 0 set lower edge portion 7 of the plate also serves as a substantial brace means therefor.

The present'device is shown as equipped with a manual shaft operating means A at the left hand side thereofand an electrical operating means B at the right hand side thereof, ating means may be selectively e ployed in preferred .embodiments'bf the invention. Each operating means. includes. a shaft 12 having its intermediate portion slidably and projecting outwardly from the lower for movement transversely at the outer side of the turning shaft 8. yThe lower end of I vided with a pair of pins 14 which project therefrom at right angles to each other, and both pins are so disposed as to extend at an angle of degrees to the plane of the plate when the turning shaft isrin either limit of late. This groove 11 to-. I

although these two types of oper- 7 ournaled in a bracket sleeve 13 secured to I portion 7 of the plate andholding the shaft the turning shaft is pro- 1 movement, one of the pins thus projecting Houtwardly in either limit of movement these pins being disposed tomove in difierent horizontal planeseach includingthe axis of shafts 12 with which the respe'c-' A tive pins are adaptedto engage. Each shaftf 12 is provided at its inner end with "a bifurcated head respective pm, .and thus to move eturning frame from one side of the plate to" the other, the shaft corresponding with the re.- spective outwardlyprojecting pin. 14 is moved inwardly and'engages the pin with a 1 j cam action to turn. the frame through a naj or portion of its movement, the remainortion adapted to en the i P lar 9.0;.

ing movement of vthe frame being pro'cu'red by; means of gravity and the momentum in y parted thereto. v I

Each of theshafts 12 is-held against turning movements in its respective sleeve 13 by any suitable means suchas the pin and slot connection. 15,-and the shafts are urged outwardly toinitial position by expansile springs 16 coiled thereon between the sleeve and an outer head member, the headmember in the mechanism A comprising a finger piece 17 and the head member in the mechanism B comprising-a solenoid bar 18 operating in conjunction with --a coil 19 which receives the spring in its bore when the shaft retracted, and which. forms part of. an

electric circuit including a suitable source of energy 21, and a switch 22 whereby the mechanism may be operated by simply pressing a convenient button.

In connection with the manually operated mechanism A, it is noted that for the finger piece 17 a suitable lever structure may be substituted for operating the mechanism A, the application of such lever structure being entirely obvious and conventional and consequently not shown. The turning frame carries a sheet engaging clip 23 and either of these clips may be carried by the turning member and by. the frame if desired to assist in holding the sheets thereon.

I claim: 1. A leaf turning device comprising a body frame, a turning frame including a transversely 'journ'aled' shaft on a body frame, a pair of pins projectinglaterally from longitudinally spaced portions of the shaft, operating shafts movable transversely past the first shaft and engageable with the respective pins, and each pin being disposed on the shaft at an angle to its respective operating shaft when in'operating position.

2. A leaf turning device comprising a body frame, a turmng frame including a shaft journaled transversely thereon, a pin projecting laterally from said shaft, an operating shaft mounted for slidable movement transversely of the first shaft to engage said pin, a solenoid coil surrounding said operating shaft, and a solenoid armature formed at the adjacent end of said operating shaft.

In testimony that I claim the foregoing I have hereunto set my hand at Hiles, in the county of Forest and State of Wisconsin, in the presence of two Witnesses.

' JOHN B. STURZL.

Witnesses:

FRED TUCKER, ALFRED HANSON. 

